gabrielle giffords spoke briefly at today's congressional hearing but what she said carried a powerful message. >> we must do something. it will be hard, but the time is now. >> as she made her emotional appeal the nra head re lapierre listen then -- listened in. >> background checks will never be universal because criminals will never submit to that. >> in a fiery rebuttal, her husband mark kelly spoke. >> my wife would not have been sitting in this seat today if we had stronger background checks. >> a teenager who marched during the inaugural parade was shot to death in chicago. >> if we can save even one child's life, we have an obligation to try. combat gun violence, president obama islawmakers to pass legislation that will limit the number of rounds in a magazine clip and require universal background checks for gun purchases. the nra says lawmakers should focus on enforcing current laws. republicans and some rural state democrats agree and it is a challenge for president obama. >> the manslaughter conviction of a former culpeper police officer could be thrown out. yesterday a jury